[Pkg-gnupg-commit] [gnupg2] 81/185: doc: Update yat2m to take care of SOURCE_DATE_EPOCH.

[Daniel Kahn Gillmor]

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dkg pushed a commit to branch experimental
in repository gnupg2.

commit 139de02b93773615bdd95e04a7f0c1ad73b4f6fb
Author: Werner Koch <wk at gnupg.org>
Date:   Wed Jul 5 09:14:38 2017 +0200

    doc: Update yat2m to take care of SOURCE_DATE_EPOCH.
    
    * doc/yat2m.c (main): Set a default for OPT_DATE.
    
    Signed-off-by: Werner Koch <wk at gnupg.org>
---
 doc/yat2m.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/doc/yat2m.c b/doc/yat2m.c
index 23fc6ba..c7bec33 100644
--- a/doc/yat2m.c
+++ b/doc/yat2m.c
@@ -1,5 +1,5 @@
 /* yat2m.c - Yet Another Texi 2 Man converter
- *	Copyright (C) 2005, 2013, 2015, 2016 g10 Code GmbH
+ *	Copyright (C) 2005, 2013, 2015, 2016, 2017 g10 Code GmbH
  *      Copyright (C) 2006, 2008, 2011 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
@@ -16,6 +16,12 @@
  * along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
+/**********************************************
+ * Note: The canonical source of this tool   **
+ *       is part of libgpg-error and it      **
+ *       installs yat2m on the build system. **
+ **********************************************/
+
 /*
     This is a simple texinfo to man page converter.  It needs some
     special markup in th e texinfo and tries best to get a create man
@@ -1478,6 +1484,7 @@ int
 main (int argc, char **argv)
 {
   int last_argc = -1;
+  const char *s;
 
   opt_source = "GNU";
   opt_release = "";
@@ -1611,6 +1618,11 @@ main (int argc, char **argv)
   if (argc > 1)
     die ("usage: " PGM " [OPTION] [FILE] (try --help for more information)\n");
 
+  /* Take care of supplied timestamp for reproducible builds.  See
+   * https://reproducible-builds.org/specs/source-date-epoch/  */
+  if (!opt_date && (s = getenv ("SOURCE_DATE_EPOCH")) && *s)
+    opt_date = s;
+
   /* Start processing. */
   if (argc && strcmp (*argv, "-"))
     {

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